Control Circuit Inspection

Check for short to ground in harness.
1. Ignition "OFF".
2. Disconnect injector connector and PCM connector.
3. Measure resistance between terminal 1 of injector harness connector and chassis ground.
  1. Specification: Infinite
  Fig 1: Measuring Resistance Between Terminal 1 Of Injector Harness Connector And Chassis Ground
4. Is the measured resistance within specification?
  YES
  - Go to 2 "Check for open in harness" as below.
  NO
  - Check for short to ground in harness.
  - Repair or replace as necessary. And then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check for open in harness.
1. Ignition "OFF".
2. Disconnect injector connector and PCM connector.
3. Measure resistance between terminal "1" of injector harness connector and terminal "2" of PCM harness connector.
  1. Specification: Approx. below 1Ω
  Fig 2: Measuring Resistance Between Terminal 1 Of Injector Harness Connector And Terminal 2 Of PCM Harness Connector
4. Is the measured resistance within specification?
  YES
  - Go to "COMPONENT INSPECTION " procedure.
  NO
  - Check for open in harness.
  - Repair or replace as necessary. And then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.